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Real Estate (Details 6) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Business Acquisition, Pro Forma Information [Abstract]        
Revenue $ 6,913,180 $ 6,924,892 $ 13,852,975 $ 13,824,335
Net income (loss) 112,610 (165,493) 397,361 (4,681,716)
Net income (loss) attributable to common stockholders $ 16,431 $ (76,789) $ 147,798 $ (2,008,456)
Net income (loss) per share   $ (0.03) $ 0.02 $ (0.77)